The present research had the primary aim of describe the characteristics of maternal sensitivity in a group of aymara mothers. Also, it had the secondary aim to determinate the existence of difference related to the gender of the children, the age of the mother and place of residence (Lima or Puno). For this purpose, 14 mothers aged between 21 and 41 years (M = 30.93, DE = 5.57) and children aged between 36 and 60 months (M = 45.00, DE = 8.54) participated in this study, belonging to the community of Chucuito situated on the district of Puno, Department of Puno. The Maternal Behavior for Preschoolers Q-Set was used to observe maternal sensitivity. The results indicated lowers levels of maternal sensitivity and contribution to harmonious interaction, secure base support, supervision/monitoring, and limit setting than the theoretical ideal about a sensitive mother. The results also show similar maternal behavior related to support the context exploration of the children. Finally, the mothers show superior levels of secure base support and limit setting with boys. The mothers with ages near to thirties show superior levels of global sensitivity than mothers with ages about forties. To conclude, the mothers show higher levels of global sensitivity and sensitivity by scales than another study in Lima city but lower than other mothers from Latin American studies.